chain: Cleanup consensus logic

chain/beacon/drand/drand.go

@@ -177,6 +177,11 @@ func (db *DrandBeacon) VerifyEntry(curr types.BeaconEntry, prev types.BeaconEntr
 		// TODO handle genesis better
 		return nil
 	}
+
+	if curr.Round != prev.Round+1 {
+		return xerrors.Errorf("invalid beacon entry: cur (%d) != prev (%d) + 1", curr.Round, prev.Round)
+	}
+
 	if be := db.getCachedValue(curr.Round); be != nil {
 		if !bytes.Equal(curr.Data, be.Data) {
 			return xerrors.New("invalid beacon value, does not match cached good value")

chain/consensus/filcns/compute_state.go

@@ -0,0 +1,297 @@
+package filcns
+
+import (
+	"context"
+	"sync/atomic"
+
+	"github.com/ipfs/go-cid"
+	cbg "github.com/whyrusleeping/cbor-gen"
+	"go.opencensus.io/stats"
+	"go.opencensus.io/trace"
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/big"
+	blockadt "github.com/filecoin-project/specs-actors/actors/util/adt"
+
+	exported0 "github.com/filecoin-project/specs-actors/actors/builtin/exported"
+	exported2 "github.com/filecoin-project/specs-actors/v2/actors/builtin/exported"
+	exported3 "github.com/filecoin-project/specs-actors/v3/actors/builtin/exported"
+	exported4 "github.com/filecoin-project/specs-actors/v4/actors/builtin/exported"
+	exported5 "github.com/filecoin-project/specs-actors/v5/actors/builtin/exported"
+
+	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/filecoin-project/lotus/chain/actors/builtin"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/cron"
+	"github.com/filecoin-project/lotus/chain/actors/builtin/reward"
+	"github.com/filecoin-project/lotus/chain/stmgr"
+	"github.com/filecoin-project/lotus/chain/store"
+	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/chain/vm"
+	"github.com/filecoin-project/lotus/metrics"
+)
+
+func NewActorRegistry() *vm.ActorRegistry {
+	inv := vm.NewActorRegistry()
+
+	// TODO: define all these properties on the actors themselves, in specs-actors.
+
+	inv.Register(vm.ActorsVersionPredicate(actors.Version0), exported0.BuiltinActors()...)
+	inv.Register(vm.ActorsVersionPredicate(actors.Version2), exported2.BuiltinActors()...)
+	inv.Register(vm.ActorsVersionPredicate(actors.Version3), exported3.BuiltinActors()...)
+	inv.Register(vm.ActorsVersionPredicate(actors.Version4), exported4.BuiltinActors()...)
+	inv.Register(vm.ActorsVersionPredicate(actors.Version5), exported5.BuiltinActors()...)
+
+	return inv
+}
+
+type TipSetExecutor struct{}
+
+func NewTipSetExecutor() *TipSetExecutor {
+	return &TipSetExecutor{}
+}
+
+func (t *TipSetExecutor) NewActorRegistry() *vm.ActorRegistry {
+	return NewActorRegistry()
+}
+
+type FilecoinBlockMessages struct {
+	store.BlockMessages
+
+	WinCount int64
+}
+
+func (t *TipSetExecutor) ApplyBlocks(ctx context.Context, sm *stmgr.StateManager, parentEpoch abi.ChainEpoch, pstate cid.Cid, bms []FilecoinBlockMessages, epoch abi.ChainEpoch, r vm.Rand, em stmgr.ExecMonitor, baseFee abi.TokenAmount, ts *types.TipSet) (cid.Cid, cid.Cid, error) {
+	done := metrics.Timer(ctx, metrics.VMApplyBlocksTotal)
+	defer done()
+
+	partDone := metrics.Timer(ctx, metrics.VMApplyEarly)
+	defer func() {
+		partDone()
+	}()
+
+	makeVmWithBaseState := func(base cid.Cid) (*vm.VM, error) {
+		vmopt := &vm.VMOpts{
+			StateBase:      base,
+			Epoch:          epoch,
+			Rand:           r,
+			Bstore:         sm.ChainStore().StateBlockstore(),
+			Actors:         NewActorRegistry(),
+			Syscalls:       sm.Syscalls,
+			CircSupplyCalc: sm.GetVMCirculatingSupply,
+			NtwkVersion:    sm.GetNtwkVersion,
+			BaseFee:        baseFee,
+			LookbackState:  stmgr.LookbackStateGetterForTipset(sm, ts),
+		}
+
+		return sm.VMConstructor()(ctx, vmopt)
+	}
+
+	vmi, err := makeVmWithBaseState(pstate)
+	if err != nil {
+		return cid.Undef, cid.Undef, xerrors.Errorf("making vm: %w", err)
+	}
+
+	runCron := func(epoch abi.ChainEpoch) error {
+		cronMsg := &types.Message{
+			To:         cron.Address,
+			From:       builtin.SystemActorAddr,
+			Nonce:      uint64(epoch),
+			Value:      types.NewInt(0),
+			GasFeeCap:  types.NewInt(0),
+			GasPremium: types.NewInt(0),
+			GasLimit:   build.BlockGasLimit * 10000, // Make super sure this is never too little
+			Method:     cron.Methods.EpochTick,
+			Params:     nil,
+		}
+		ret, err := vmi.ApplyImplicitMessage(ctx, cronMsg)
+		if err != nil {
+			return err
+		}
+		if em != nil {
+			if err := em.MessageApplied(ctx, ts, cronMsg.Cid(), cronMsg, ret, true); err != nil {
+				return xerrors.Errorf("callback failed on cron message: %w", err)
+			}
+		}
+		if ret.ExitCode != 0 {
+			return xerrors.Errorf("CheckProofSubmissions exit was non-zero: %d", ret.ExitCode)
+		}
+
+		return nil
+	}
+
+	for i := parentEpoch; i < epoch; i++ {
+		if i > parentEpoch {
+			// run cron for null rounds if any
+			if err := runCron(i); err != nil {
+				return cid.Undef, cid.Undef, err
+			}
+
+			pstate, err = vmi.Flush(ctx)
+			if err != nil {
+				return cid.Undef, cid.Undef, xerrors.Errorf("flushing vm: %w", err)
+			}
+		}
+
+		// handle state forks
+		// XXX: The state tree
+		newState, err := sm.HandleStateForks(ctx, pstate, i, em, ts)
+		if err != nil {
+			return cid.Undef, cid.Undef, xerrors.Errorf("error handling state forks: %w", err)
+		}
+
+		if pstate != newState {
+			vmi, err = makeVmWithBaseState(newState)
+			if err != nil {
+				return cid.Undef, cid.Undef, xerrors.Errorf("making vm: %w", err)
+			}
+		}
+
+		vmi.SetBlockHeight(i + 1)
+		pstate = newState
+	}
+
+	partDone()
+	partDone = metrics.Timer(ctx, metrics.VMApplyMessages)
+
+	var receipts []cbg.CBORMarshaler
+	processedMsgs := make(map[cid.Cid]struct{})
+	for _, b := range bms {
+		penalty := types.NewInt(0)
+		gasReward := big.Zero()
+
+		for _, cm := range append(b.BlsMessages, b.SecpkMessages...) {
+			m := cm.VMMessage()
+			if _, found := processedMsgs[m.Cid()]; found {
+				continue
+			}
+			r, err := vmi.ApplyMessage(ctx, cm)
+			if err != nil {
+				return cid.Undef, cid.Undef, err
+			}
+
+			receipts = append(receipts, &r.MessageReceipt)
+			gasReward = big.Add(gasReward, r.GasCosts.MinerTip)
+			penalty = big.Add(penalty, r.GasCosts.MinerPenalty)
+
+			if em != nil {
+				if err := em.MessageApplied(ctx, ts, cm.Cid(), m, r, false); err != nil {
+					return cid.Undef, cid.Undef, err
+				}
+			}
+			processedMsgs[m.Cid()] = struct{}{}
+		}
+
+		params, err := actors.SerializeParams(&reward.AwardBlockRewardParams{
+			Miner:     b.Miner,
+			Penalty:   penalty,
+			GasReward: gasReward,
+			WinCount:  b.WinCount,
+		})
+		if err != nil {
+			return cid.Undef, cid.Undef, xerrors.Errorf("failed to serialize award params: %w", err)
+		}
+
+		rwMsg := &types.Message{
+			From:       builtin.SystemActorAddr,
+			To:         reward.Address,
+			Nonce:      uint64(epoch),
+			Value:      types.NewInt(0),
+			GasFeeCap:  types.NewInt(0),
+			GasPremium: types.NewInt(0),
+			GasLimit:   1 << 30,
+			Method:     reward.Methods.AwardBlockReward,
+			Params:     params,
+		}
+		ret, actErr := vmi.ApplyImplicitMessage(ctx, rwMsg)
+		if actErr != nil {
+			return cid.Undef, cid.Undef, xerrors.Errorf("failed to apply reward message for miner %s: %w", b.Miner, actErr)
+		}
+		if em != nil {
+			if err := em.MessageApplied(ctx, ts, rwMsg.Cid(), rwMsg, ret, true); err != nil {
+				return cid.Undef, cid.Undef, xerrors.Errorf("callback failed on reward message: %w", err)
+			}
+		}
+
+		if ret.ExitCode != 0 {
+			return cid.Undef, cid.Undef, xerrors.Errorf("reward application message failed (exit %d): %s", ret.ExitCode, ret.ActorErr)
+		}
+	}
+
+	partDone()
+	partDone = metrics.Timer(ctx, metrics.VMApplyCron)
+
+	if err := runCron(epoch); err != nil {
+		return cid.Cid{}, cid.Cid{}, err
+	}
+
+	partDone()
+	partDone = metrics.Timer(ctx, metrics.VMApplyFlush)
+
+	rectarr := blockadt.MakeEmptyArray(sm.ChainStore().ActorStore(ctx))
+	for i, receipt := range receipts {
+		if err := rectarr.Set(uint64(i), receipt); err != nil {
+			return cid.Undef, cid.Undef, xerrors.Errorf("failed to build receipts amt: %w", err)
+		}
+	}
+	rectroot, err := rectarr.Root()
+	if err != nil {
+		return cid.Undef, cid.Undef, xerrors.Errorf("failed to build receipts amt: %w", err)
+	}
+
+	st, err := vmi.Flush(ctx)
+	if err != nil {
+		return cid.Undef, cid.Undef, xerrors.Errorf("vm flush failed: %w", err)
+	}
+
+	stats.Record(ctx, metrics.VMSends.M(int64(atomic.LoadUint64(&vm.StatSends))),
+		metrics.VMApplied.M(int64(atomic.LoadUint64(&vm.StatApplied))))
+
+	return st, rectroot, nil
+}
+
+func (t *TipSetExecutor) ExecuteTipSet(ctx context.Context, sm *stmgr.StateManager, ts *types.TipSet, em stmgr.ExecMonitor) (stateroot cid.Cid, rectsroot cid.Cid, err error) {
+	ctx, span := trace.StartSpan(ctx, "computeTipSetState")
+	defer span.End()
+
+	blks := ts.Blocks()
+
+	for i := 0; i < len(blks); i++ {
+		for j := i + 1; j < len(blks); j++ {
+			if blks[i].Miner == blks[j].Miner {
+				return cid.Undef, cid.Undef,
+					xerrors.Errorf("duplicate miner in a tipset (%s %s)",
+						blks[i].Miner, blks[j].Miner)
+			}
+		}
+	}
+
+	var parentEpoch abi.ChainEpoch
+	pstate := blks[0].ParentStateRoot
+	if blks[0].Height > 0 {
+		parent, err := sm.ChainStore().GetBlock(blks[0].Parents[0])
+		if err != nil {
+			return cid.Undef, cid.Undef, xerrors.Errorf("getting parent block: %w", err)
+		}
+
+		parentEpoch = parent.Height
+	}
+
+	r := store.NewChainRand(sm.ChainStore(), ts.Cids())
+
+	blkmsgs, err := sm.ChainStore().BlockMsgsForTipset(ts)
+	if err != nil {
+		return cid.Undef, cid.Undef, xerrors.Errorf("getting block messages for tipset: %w", err)
+	}
+	fbmsgs := make([]FilecoinBlockMessages, len(blkmsgs))
+	for i := range fbmsgs {
+		fbmsgs[i].BlockMessages = blkmsgs[i]
+		fbmsgs[i].WinCount = ts.Blocks()[i].ElectionProof.WinCount
+	}
+	baseFee := blks[0].ParentBaseFee
+
+	return t.ApplyBlocks(ctx, sm, parentEpoch, pstate, fbmsgs, blks[0].Height, r, em, baseFee, ts)
+}
+
+var _ stmgr.Executor = &TipSetExecutor{}